Quantum Monte Carlo simulation of the ferroelectric or ferrielectric nanowire with core shell morphology |
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| Affiliation: | 1. Institute of Physics AS CR, v.v.i., Na Slovance 1999/2, 182 21 Prague 8, Czech Republic;2. Institute of Inorganic Chemistry AS CR, v.v.i., Husinec-Řež 1001, 25068 Řež, Czech Republic;1. Institut Jean Lamour, UMR CNRS 7198, Université de Lorraine, BP 70239, F-54506 Vandoeuvre-lès-Nancy, France;2. Materials Nanomaterials Center, MAScIR Foundation, B.P. 10100-Rabat, Morocco;3. Magnetism and Physics of the High Energies Laboratory, URAC 12, B.P. 1014, Faculty of science, Mohammed V University, Rabat, Morocco;1. Department of Physics, Erciyes University, 38039 Kayseri, Turkey;2. Graduate School of Natural and Applied Sciences, Erciyes University, 38039 Kayseri, Turkey |
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| Abstract: | By using the Quantum Monte Carlo simulation; the electric properties of a nanowire, consisting of a ferroelectric core of spin-1/2 surrounded by a ferroelectric shell of spin-1/2 with ferro- or anti-ferroelectric interfacial coupling have been studied within the framework of the Transverse Ising Model (TIM). We have examined the effects of the shell coupling Js, the interfacial coupling JInt, the transverse field Ω, and the temperature T on the hysteresis behavior and on the electric properties of the system. The remanent polarization and the coercive field as a function of the transverse field and the temperature are examined. A number of characteristic behavior have been found such as the appearance of triple hysteresis loops for appropriate values of the system parameters. |
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| Keywords: | Ferroelectrics Transverse Ising model Quantum Monte Carlo simulation Hysteresis loop |
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